Vor eig. Appstart ein Login funktioniert nicht

[DJ WeSt]

Hallo Leute,

ich bin dabei mir eine kleine Desktop Anwendung zu schreiben allerdings stoße ich auf ein Problem.
Hier mal mein Code der main Class:

/*
 * SKSJBusiness2011App.java
 */

package sksjbusiness2011;

import org.jdesktop.application.Application;
import org.jdesktop.application.SingleFrameApplication;

/**
 * The main class of the application.
 */
public class SKSJBusiness2011App extends SingleFrameApplication {
    
    private SKSJBusiness2011Login login;
   
    @Override protected void startup() {
        
        show(new SKSJBusiness2011Login(login));  
        
        if(login.loginApp() == true){
            show(new SKSJBusiness2011View(this)); 
        
        }
    }
    /*
    private SKSJBusiness2011Login login = new SKSJBusiness2011Login( null ); 
    
    @Override protected void startup() {
    show(new SKSJBusiness2011Login(login));     
        
            if(login.loginApp() == true){
                   show(new SKSJBusiness2011View(this)); 
            }
    }
    */
    /**
     * This method is to initialize the specified window by injecting resources.
     * Windows shown in our application come fully initialized from the GUI
     * builder, so this additional configuration is not needed.
     */
    @Override protected void configureWindow(java.awt.Window root) {
    }

    /**
     * A convenient static getter for the application instance.
     * @return the instance of SKSJBusiness2011App
     */
    public static SKSJBusiness2011App getApplication() {
        return Application.getInstance(SKSJBusiness2011App.class);
    }

    /**
     * Main method launching the application.
     */
    public static void main(String[] args) {
        launch(SKSJBusiness2011App.class, args);
    }
}

und hier der Code der Loginklasse:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/*
 * SKSJBusiness2011Login.java
 *
 * Created on 07.06.2011, 11:10:17
 */
package sksjbusiness2011;

import org.jdesktop.application.Action;

/**
 *
 * @author ll
 */
public class SKSJBusiness2011Login extends javax.swing.JDialog {

    /** Creates new form SKSJBusiness2011Login */
    public SKSJBusiness2011Login(java.awt.Dialog parent) {
        super(parent);
        initComponents();
        setLocationRelativeTo(null);
    }
    
    @Action public boolean loginApp(){    
        
        if(jTextField1.getText().equals("Admin")){   
            System.out.println("Der Benutzername ist korrekt!");
            dispose();
            return true;
        }
        else {
            System.out.println("Der Benutzername ist falsch!");
        }
        return true;
    }
        
    @Action public void closeLoginBox() {
        dispose();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jPasswordField1 = new javax.swing.JPasswordField();
        jTextField1 = new javax.swing.JTextField();
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(sksjbusiness2011.SKSJBusiness2011App.class).getContext().getResourceMap(SKSJBusiness2011Login.class);
        setTitle(resourceMap.getString("Form.title")); // NOI18N
        setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        setName("Form"); // NOI18N

        javax.swing.ActionMap actionMap = org.jdesktop.application.Application.getInstance(sksjbusiness2011.SKSJBusiness2011App.class).getContext().getActionMap(SKSJBusiness2011Login.class, this);
        jButton1.setAction(actionMap.get("loginApp")); // NOI18N
        jButton1.setText(resourceMap.getString("jButton1.text")); // NOI18N
        jButton1.setName("jButton1"); // NOI18N

        jButton2.setAction(actionMap.get("closeLoginBox")); // NOI18N
        jButton2.setText(resourceMap.getString("jButton2.text")); // NOI18N
        jButton2.setName("jButton2"); // NOI18N

        jPasswordField1.setText(resourceMap.getString("jPasswordField1.text")); // NOI18N
        jPasswordField1.setName("jPasswordField1"); // NOI18N

        jTextField1.setText(resourceMap.getString("jTextField1.text")); // NOI18N
        jTextField1.setName("jTextField1"); // NOI18N

        jLabel1.setText(resourceMap.getString("jLabel1.text")); // NOI18N
        jLabel1.setName("jLabel1"); // NOI18N

        jLabel2.setText(resourceMap.getString("jLabel2.text")); // NOI18N
        jLabel2.setName("jLabel2"); // NOI18N

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jButton1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 86, Short.MAX_VALUE)
                        .addComponent(jButton2))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                            .addComponent(jLabel1)
                            .addComponent(jLabel2))
                        .addGap(37, 37, 37)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jPasswordField1)
                            .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 127, javax.swing.GroupLayout.PREFERRED_SIZE))))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(15, 15, 15)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel1))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jPasswordField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabel2))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                        

    /**
     * @param args the command line arguments
     */

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JPasswordField jPasswordField1;
    public javax.swing.JTextField jTextField1;
    // End of variables declaration                   
}

Ich bekomme eine NullpointerException in der Mainklasse Methode startup() bei der If-Abfrage weshalb ?
Ich bin kein wirklicher Javaexperte also bitte ich um Nachsicht bin ja hier um es zu lernen.

 

[Gast2]

private SKSJBusiness2011Login login;

Danach ist login noch null.

 

[DJ WeSt]

Okay was mich halt wundert ist der Logindialog startet, allerdings nach Klick auf anmelden passiert nix mehr.
Wo doch eigentlich die eigentliche App gestartet werden sollte.